Qiao Fan, Masato Tanaka, Kohei Tanaka, Aya Sakaguchi, Yoshio Takahashi,
The relationship between cesium (Cs) adsorption on clay minerals with various expandabilities and Cs mobility in environment was investigated using sequential extraction, batch adsorption, X-ray diffraction (XRD), generalized adsorption model (GAM), and Cs LIII-edge extended X-ray absorption fine structure (EXAFS) analyses with molecular simulations using the density functional theory (DFT). In particular, the difference between the affinities of illite (non-expansion) and vermiculite (intermediate expansion) ...
Tópico(s): Radioactivity and Radon Measurements
2014 - Elsevier BV | Geochimica et Cosmochimica Acta
Nobuto Nakanishi, Keibun Liu, Akira Kawauchi, Masatsugu Okamura, Kohei Tanaka, Sho Katayama, Yuki Mitani, Kohei Ota, Shunsuke Taito, Kenichi Fudeyasu, Yuki Masuka, Shodai Yoshihiro, Shu Utsumi, Mitsuaki Nishikimi, Mamoru Masuda, Yuki Iida, Yusuke Kawai, Junji Hatakeyama, Toru Hifumi, Takeshi Unoki, Daisuke Kawakami, Kengo Obata, Hajime Katsukawa, Hidenori Sumita, Tomoyuki Morisawa, Masahiro Takahashi, Norihiko Tsuboi, Ryo Kozu, Shunsuke Takaki, Junpei Haruna, Yoshihisa Fujinami, Nobuyuki Nosaka, Kyohei Miyamoto, Kensuke Nakamura, Yutaka Kondo, Shigeaki Inoue, Osamu Nishida,
Abstract Background The assessment of post-intensive care syndrome (PICS) is challenging due to the numerous types of instruments. We herein attempted to identify and propose recommendations for instruments to assess PICS in intensive care unit (ICU) survivors. Methods We conducted a scoping review to identify PICS follow-up studies at and after hospital discharge between 2014 and 2022. Assessment instruments used more than two times were included in the modified Delphi consensus process. A modified ...
Tópico(s): Healthcare Decision-Making and Restraints
2023 - BioMed Central | Critical Care
Kohei Tanaka, Yoshinori Saito,
The geometrical condition under which simultaneous reflexions occur with a general setting of a crystal has been formulated in three equations in terms of reciprocal-lattice vectors. A procedure is described to correct the intensity data for structure analysis for the intensity perturbation due to simultaneous reflexion. The following practical experimental conditions were taken into account: the effect due to the circumstance that the primary and secondary reflexions do not always occur exactly ...
Tópico(s): X-ray Spectroscopy and Fluorescence Analysis
1975 - International Union of Crystallography | Acta Crystallographica Section A
Kohei Tanaka, Onishi Ryoki, Masayuki Miyazaki, Y. Ishibashi, Takashi Yuasa, Mari waya-Inoue,
Rice productivity is related to the ability of plants to adapt to heat stress. The heat-tolerant cultivars 'Nikomaru' and 'Chikushi 64' and heat-sensitive cultivar 'Hinohikari' were grown at 30ºC and 25ºC for 49 days after flowering. At 30ºC, only a few white immature kernels were produced in 'Nikomaru' and 'Chikushi 64', but about 22% of grains had immature kernels in 'Hinohikari'. The high temperature(30ºC) caused no significant changes in grain dry weight, water content, and the NMR T1 value during ...
Tópico(s): Food composition and properties
2009 - Taylor & Francis | Plant Production Science
Tópico(s): Marine Biology and Environmental Chemistry
2002 - Springer Science+Business Media | Marine Biology
Kohei Tanaka, Darla K. Zelenitsky, Thomas E. Williamson, Anne Weil, François Therrien,
Approximately 1500 eggshell fragments were recovered from a vertebrate bonebed (NMMNH L-4010) in the late Campanian Fruitland Formation in northwestern New Mexico, a locality that represents one of the few southern occurrences of fossil eggshells in North America. Here, we present the first description of Campanian eggshells from New Mexico and identify six different eggshell types (Continuoolithus sp., Porituberoolithus sp., Testudoolithus sp., Prismatoolithus sp., krokolithid, indeterminate type) ...
Tópico(s): Evolution and Paleontology Studies
2010 - Taylor & Francis | Historical Biology
Li Xu, Yoshitsugu Kobayashi, Junchang Lü, Yuong‐Nam Lee, Yongqing Liu, Kohei Tanaka, Xingliao Zhang, Songhai Jia, Jiming Zhang,
A partial skeleton of the ornithomimid dinosaur, discovered from the Late Cretaceous Qiupa Formation of Luanchuan County, Tantou Basin, Henan Province, China, is described here and assigned to a new genus and species, Qiupalong henanensis, with unique features (a notch on the lateral surface of the lateral posterior process of the proximal end of tibia and a small pit at the contact between astragalus and calcaneum). A phylogenetic analysis in this study suggests that it is a derived ornithomimid ...
Tópico(s): Evolution and Paleontology Studies
2010 - Elsevier BV | Cretaceous Research
В. Ю. Голиков, E. Wallström, T. Wöhni, Kohei Tanaka, Satoru Endo, Masaharu Hoshi,
Tópico(s): Advanced X-ray and CT Imaging
2007 - Springer Science+Business Media | Radiation and Environmental Biophysics
Kohei Tanaka, Junchang Lü, Yoshitsugu Kobayashi, Dark K. ZELENITSKY, Li Xu, Songhai Jia, Shuang Qin, Tang Min-an,
Abstract: Here, we examine 145 dinosaur eggshells from a new fossil locality in the Qiupa Formation (Upper Cretaceous) of the Luanchuan area in western Henan Province, China. The eggshells display elongatoolithid macro‐ and microstructures, including ridges and nodes on the outer surface, two ultrastructural layers, and an undulatory boundary between the mammillary and continuous layers. A phylogenic analysis shows that the Luanchuan eggshells belong to the ooclade Elongatoolithidae. Within Elongatoolithidae, ...
Tópico(s): Ichthyology and Marine Biology
2011 - Wiley | Acta Geologica Sinica - English Edition
Kohei Tanaka, Tomoyuki Furuyashiki, Shiho Kitaoka, Yuta Senzai, Yuki Imoto, Eri Segi‐Nishida, Yuichi Deguchi, Richard Breyer, Matthew D. Breyer, Shuh Narumiya,
Various kinds of stress are thought to precipitate psychiatric disorders, such as major depression. Whereas studies in rodents have suggested a critical role of medial prefrontal cortex (mPFC) in stress susceptibility, the mechanism of how stress susceptibility is determined through mPFC remains unknown. Here we show a critical role of prostaglandin E 2 (PGE 2 ), a bioactive lipid derived from arachidonic acid, in repeated social defeat stress in mice. Repeated social defeat increased the PGE 2 level ...
Tópico(s): Tryptophan and brain disorders
2012 - Society for Neuroscience | Journal of Neuroscience
Takahiro Sato, Kohei Tanaka, Akiko Toyokura, Rika Mori, Rintaro Takahashi, Ken Terao, Shin‐ichi Yusa,
The self-association behavior of a thermosensitive amphiphilic block copolymer, poly(N-isopropylacrylamide)-b-poly(N-vinyl-2-pyrrolidone) (PNIPAM-b-PNVP) in water upon heating was investigated by static and dynamic light scattering (SLS and DLS), small-angle X-ray scattering (SAXS), and pulsed field gradient NMR (PFG-NMR). Combining SLS and DLS with SAXS and PFG-NMR, we conclude that above 40 °C, the unimer or a few arms star micelle of the copolymer coexists with large spherical particles of uniform ...
Tópico(s): Pickering emulsions and particle stabilization
2012 - American Chemical Society | Macromolecules
Mitsuaki Suda, Kohei Tanaka, Koshi Natsui, Takeshi Usui, Issei Tanaka, M Fukushima, Chohei Shigeno, Junji Konishi, Shuh Narumiya, Atsushi Ichikawa, N. Nakao,
PGE2 is one of the key molecules in the osteoblast. It is the major prostanoid in the bone, and its production is under the control of both systemic and local factors. PGE2 has been reported to have multiple actions in the osteoblast, such as growth promotion and cell differentiation. To better understand the action of PGE2 in the osteoblast, we determined the PGE receptor subtypes in MC3T3-E1, an osteoblastic cell line derived from the normal mouse calvaria. Northern blot analysis revealed that ...
Tópico(s): Estrogen and related hormone effects
1996 - Oxford University Press | Endocrinology
Izumi Kamiya, Takahito Kuroki, Kohei Tanaka,
数値地図50mメッシュ (標高) を用い, 地表面の傾斜を濃淡画像で表現した傾斜量図を作成し, これを用いた地形・地質の判読を試みた.傾斜量図は, 低地 (段丘) , 山地, 火山, 地すべり地の地形の判読に有用であった.また, 構成地質に関しては, 構造線・断層の候補となるリニアメント, ある種の岩石の分布域の境界を判読できる場合があった.判読のための傾斜の計算方法としては, Roberts型よりもPrewitt型あるいはSobel型が優れている.傾斜量図は, 他の地表面の表現手法と比べ, いくつかの点で優れている.上記の判読で使用している基本的な判読キーは, 「明るさ」, 「一様性」, 「線間隔」, 「鮮明さ」, 「方向性」であった.また, 山地においては, 尾根と谷に対応する明るい線が互いにがっちりかみ合った模様である「脳状模様」が有用な判読キーであった.以上を総合し, 傾斜量図は, 地形・地質を調査する上で重要な資料となりうる.
Tópico(s): Computer Graphics and Visualization Techniques
2000 - | GEOINFORMATICS
Kohei Tanaka, Akihiro Fujiwara,
In the present paper, we consider fully asynchronous parallelism in membrane computing and propose asynchronous P systems for the following four graph problems: minimum coloring, maximum independent set, minimum vertex cover, and maximum clique. We first propose an asynchronous P system that solves the minimum graph coloring for a graph with n nodes and show that the proposed P system works in O(nn+2) sequential steps or O(n2) parallel steps by using O(n2) kinds of objects. Second, we propose an ...
Tópico(s): semigroups and automata theory
2014 - | International Journal of Networking and Computing
Kohei Tanaka, Kazuya Yamamoto, Jun‐ichi Kadokawa,
In this paper, we report that nanofiber network structures were constructed from chitin derivatives by gas bubbling and ultrasonic treatments in water. When chitin was first subjected to N2 gas bubbling with ultrasonication in water, the SEM images of the product showed nanofiber network morphology. However, nanofiber network was not re-constructed by the same N2 gas bubbling and ultrasonic treatments after agglomeration. We then have paid attention to an amidine group to provide the agglomeration– ...
Tópico(s): Nanocomposite Films for Food Packaging
2014 - Elsevier BV | Carbohydrate Research
Yosuke Iwata, Mitsuhiro Murata, Kohei Tanaka, Tadashi Ohtake, Hidefumi Yoshida, Koichi Miyachi,
Abstract We have developed a novel super fast response (SFR) thin‐film transistor liquid crystal display (TFT‐LCD) with an extremely wide temperature range. Nematic liquid crystal molecules with positive dielectric anisotropy are vertically aligned initially. Any gray‐to‐gray response is forcibly controlled by applying an electric field. Response times of the SFR TFT‐LCD are over several times shorter than those of conventional LCDs such as vertical alignment or in‐plane switching LCDs.
Tópico(s): Plant Reproductive Biology
2014 - Wiley | Journal of the Society for Information Display
Yosuke Iwata, Mitsuhiro Murata, Kohei Tanaka, Akihito Jinda, Tadashi Ohtake, Tokihiko Shinomiya, Hidefumi Yoshida,
Abstract We have developed a novel super‐fast response (SFR) TFT‐LCD with an ultra‐wide temperature range. Both the turn‐on and turn‐off switching are forcibly controlled by applying an electric field. Response times of the SFR TFT‐LCD are over several times faster than those of conventional LCDs like MVA or IPS LCDs.
Tópico(s): Photonic and Optical Devices
2013 - Wiley | SID Symposium Digest of Technical Papers
Masaki Yamagata, Kohei Tanaka, Yoshihiro Tsuruda, Yoshitsugu Sone, Seisuke Fukuda, Shinichi Nakasuka, Michiyuki Kono, Masashi Ishikawa,
A prototype lithium-ion battery with a bis(fluorosulfonyl)imide (FSI)-based ionic liquid electrolyte was developed. The prototype was mounted on a demonstration module of the "Hodoyoshi-3" microsatellite, which was successfully launched on June 20, 2014. Qualification tests for space application, including radiation tolerance and vacuum tests, revealed negligible degradation of the ionic liquid-based lithium-ion battery (IL-LIB) cell. According to the flight data, the IL-LIB cell can exist stably in ...
Tópico(s): Advanced Battery Materials and Technologies
2015 - The Electrochemical Society of Japan | Electrochemistry
Kohei Tanaka, Darla K. Zelenitsky, Haruo Saegusa, Tadahiro Ikeda, Christopher L. DeBuhr, François Therrien,
The Lower Cretaceous (Albian) Sasayama Group in the Hyogo Prefecture of southwestern Japan has yielded various vertebrate fossils, including skeletal remains of dinosaurs, anurans, lizards, and mammals, and recently eggshell fragments. Here we report on numerous fossil eggshells from the bone-bearing Kamitaki locality in Tamba City, which represents a diverse dinosaur eggshell assemblage. Of the more than 90 eggshell fragments recovered, five different types were identified, including eggshells that ...
Tópico(s): Ichthyology and Marine Biology
2015 - Elsevier BV | Cretaceous Research
Kohei Tanaka, Darla K. Zelenitsky, François Therrien,
Knowledge about the types of nests built by dinosaurs can provide insight into the evolution of nesting and reproductive behaviors among archosaurs. However, the low preservation potential of their nesting materials and nesting structures means that most information can only be gleaned indirectly through comparison with extant archosaurs. Two general nest types are recognized among living archosaurs: 1) covered nests, in which eggs are incubated while fully covered by nesting material (as in crocodylians ...
Tópico(s): Amphibian and Reptile Biology
2015 - Public Library of Science | PLoS ONE
Mayuko Tezuka, Norihide Kitamura, Kohei Tanaka, Norihisa Miki,
Tactile displays provoke tactile sensations by artificially stimulating tactile receptors. While many types of tactile displays have been developed, electrotactile displays that exploit electric stimulation can be designed to be thin, light, flexible and thus, wearable. However, the high voltages required to stimulate tactile receptors and limited varieties of possible sensations pose problems. In our previous work, we developed an electrotactile display using a micro-needle electrode array that ...
Tópico(s): Neuroscience and Neural Engineering
2016 - Public Library of Science | PLoS ONE
Darla K. Zelenitsky, François Therrien, Kohei Tanaka, Philip J. Currie, Christopher L. DeBuhr,
The Willow Creek Formation (upper Maastrichtian – lower Paleocene) of southwestern Alberta is a poorly fossiliferous formation that preserves a low end-Cretaceous dinosaur diversity compared with most correlative terrestrial deposits in the North American Western Interior. Although only three dinosaur taxa are known from skeletal remains (Tyrannosaurus rex, Hadrosauridae indet., and Leptoceratopsidae indet.), study of hundreds of dinosaur eggshells recovered from several sites in the formation reveals ...
Tópico(s): Evolution and Paleontology Studies
2016 - NRC Research Press | Canadian Journal of Earth Sciences
François Therrien, Annie Quinney, Kohei Tanaka, Darla K. Zelenitsky,
Mandibular force profiles apply the principles of beam theory to identify mandibular biomechanical properties that reflect the bite force and feeding strategies of extant and extinct predators. While this method uses external dimensions of the mandibular corpus to determine its biomechanical properties, more accurate results could potentially be obtained by quantifying its internal cortical bone distribution. To test this possibility, mandibular force profiles were calculated using both external ...
Tópico(s): Wildlife Ecology and Conservation
2016 - The Company of Biologists | Journal of Experimental Biology
Shunsuke Tsujimoto, Manabu Kishina, Masahiko Koda, Yasutaka Yamamoto, Kohei Tanaka, Yusuke Harada, Akio Yoshida, Ichiro Hisatome,
Cyclooxygenase (COX)-2 selective inhibitors suppress non-alcoholic fatty liver disease (NAFLD); however, the precise mechanism of action remains unknown. The aim of this study was to examine how the COX-2 selective inhibitor nimesulide suppresses NAFLD in a murine model of high-fat diet (HFD)‑induced obesity. Mice were fed either a normal chow diet (NC), an HFD, or HFD plus nimesulide (HFD-nime) for 12 weeks. Body weight, hepatic COX-2 mRNA expression and triglyceride accumulation were significantly ...
Tópico(s): Metabolism, Diabetes, and Cancer
2016 - Spandidos Publishing | International Journal of Molecular Medicine
Tomohiro Fukushima, Hirotoshi Sakamoto, Kohei Tanaka, Yuh Hijikata, Stephan Irle, Kenichiro Itami,
Molecular carbon nanorings, [n]cycloparaphenylenes ([n]CPP), are a unique class of porous molecules with all-benzene surface. Herein, we report the preparation of polymorphs of [6]CPP crystals for the first time, and the discovery of their packing structure-dependent properties. We found that the herringbone-packed structure is thermodynamically more stable than the tubular-packed structure. We revealed that their host–guest interaction depends on the packing structures of [6]CPP: the tubular-packing ...
Tópico(s): Advanced NMR Techniques and Applications
2017 - Oxford University Press | Chemistry Letters
Kohei Tanaka, Darla K. Zelenitsky, François Therrien, Yoshitsugu Kobayashi,
Dinosaurs thrived and reproduced in various regions worldwide, including the Arctic. In order to understand their nesting in diverse or extreme environments, the relationships between nests, nesting environments, and incubation methods in extant archosaurs were investigated. Statistical analyses reveal that species of extant covered nesters (i.e., crocodylians and megapodes) preferentially select specific sediments/substrates as a function of their nesting style and incubation heat sources. Relationships ...
Tópico(s): Amphibian and Reptile Biology
2018 - Nature Portfolio | Scientific Reports
Rikio Soda, Kohei Tanaka, Kenta Takagi, Kimihiro Ozaki,
In order to develop a new magnetic-aligned compaction process using a pulsed magnetic field for the most recent high performance magnetic powder and to understand the mechanism of particle orientation behavior in the magnetic field, visualization of particle motion and prediction of the degree of alignment were performed by using a three-dimensional particle-based simulation method developed by the authors. This simulation study revealed that the degree of alignment changed significantly in a time ...
Tópico(s): Powder Metallurgy Techniques and Materials
2018 - Elsevier BV | Powder Technology
Xiang Nie, Shiho Kitaoka, Kohei Tanaka, Eri Segi‐Nishida, Yuki Imoto, Atsubumi Ogawa, Fumitake Nakano, Ayaka Tomohiro, Kazuki Nakayama, Masayuki Taniguchi, Yuko Mimori‐Kiyosue, Akira Kakizuka, Shuh Narumiya, Tomoyuki Furuyashiki,
Summary Repeated environmental stress has been proposed to induce neural inflammation together with depression and anxiety. Innate immune receptors, such as Toll-like receptors (TLRs), are activated by exogenous or endogenous ligands to evoke inflammation. Here we show that the loss of TLR2 and TLR4 (TLR2/4) abolished repeated social defeat stress (R-SDS)-induced social avoidance and anxiety in mice. TLR2/4 deficiency mitigated R-SDS-induced neuronal response attenuation, dendritic atrophy, and microglial ...
Tópico(s): Stress Responses and Cortisol
2018 - Cell Press | Neuron
Yoshitsugu Kobayashi, Tomohiro Nishimura, Ryuji Takasaki, Kentaro Chiba, Anthony R. Fiorillo, Kohei Tanaka, Tsogtbaatar Chinzorig, Tamaki Sato, Kazuhiko Sakurai,
Abstract A nearly complete skeleton of a new hadrosaurid, Kamuysaurus japonicus gen. et sp. nov., was discovered from the outer shelf deposits of the Upper Cretaceous Hakobuchi Formation of the Yezo Group in Hobetsu area of Mukawa town in Hokkaido, Japan. Kamuysaurus belongs to the sub-clade of Hadrosaurinae, Edmontosaurini, and forms a monophyly with Laiyangosaurus and Kerberosaurus from the northern Far East. Kamuysaurus has a long anterior platform for the nasofrontal sutural surface, which may ...
Tópico(s): Ichthyology and Marine Biology
2019 - Nature Portfolio | Scientific Reports
Ryo Yonebayashi, Kohei Tanaka, Kuniaki Okada, Kaoru Yamamoto, Keiichi Yamamoto, Seiichi Uchida, Tomohisa Aoki, Yujiro Takeda, Hiroaki Furukawa, Kazuatsu Ito, Hiromi Katoh, Wataru Nakamura,
Abstract A pixel circuit and a gate driver on array for light‐emitting display are presented. By simultaneously utilizing top‐gate n‐type oxide and p‐type low‐temperature polycrystalline silicon (LTPS) thin‐film transistors (TFTs), the circuits provide high refresh rate and low power consumption. An active‐matrix LED (AMOLED) panel with proposed circuits is fabricated, and driving at various refresh rate ranging from 1 to 120 Hz could be achieved.
Tópico(s): ZnO doping and properties
2020 - Wiley | Journal of the Society for Information Display